28101480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:435

約数の個数: 128

約数和(自身を含む): 93744000

約数和(自身を除く): 65642520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 61, 66, 88, 110, 120, 122, 132, 165, 183, 220, 244, 264, 305, 330, 349, 366, 440, 488, 610, 660, 671, 698, 732, 915, 1047, 1220, 1320, 1342, 1396, 1464, 1745, 1830, 2013, 2094, 2440, 2684, 2792, 3355, 3490, 3660, 3839, 4026, 4188, 5235, 5368, 6710, 6980, 7320, 7678, 8052, 8376, 10065, 10470, 11517, 13420, 13960, 15356, 16104, 19195, 20130, 20940, 21289, 23034, 26840, 30712, 38390, 40260, 41880, 42578, 46068, 57585, 63867, 76780, 80520, 85156, 92136, 106445, 115170, 127734, 153560, 170312, 212890, 230340, 234179, 255468, 319335, 425780, 460680, 468358, 510936, 638670, 702537, 851560, 936716, 1170895, 1277340, 1405074, 1873432, 2341790, 2554680, 2810148, 3512685, 4683580, 5620296, 7025370, 9367160, 14050740, 28101480]

約数ペア:

[(1, 28101480), (2, 14050740), (3, 9367160), (4, 7025370), (5, 5620296), (6, 4683580), (8, 3512685), (10, 2810148), (11, 2554680), (12, 2341790), (15, 1873432), (20, 1405074), (22, 1277340), (24, 1170895), (30, 936716), (33, 851560), (40, 702537), (44, 638670), (55, 510936), (60, 468358), (61, 460680), (66, 425780), (88, 319335), (110, 255468), (120, 234179), (122, 230340), (132, 212890), (165, 170312), (183, 153560), (220, 127734), (244, 115170), (264, 106445), (305, 92136), (330, 85156), (349, 80520), (366, 76780), (440, 63867), (488, 57585), (610, 46068), (660, 42578), (671, 41880), (698, 40260), (732, 38390), (915, 30712), (1047, 26840), (1220, 23034), (1320, 21289), (1342, 20940), (1396, 20130), (1464, 19195), (1745, 16104), (1830, 15356), (2013, 13960), (2094, 13420), (2440, 11517), (2684, 10470), (2792, 10065), (3355, 8376), (3490, 8052), (3660, 7678), (3839, 7320), (4026, 6980), (4188, 6710), (5235, 5368)]